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<title>class RBS::DefinitionBuilder::AncestorBuilder - rbs: Ruby Standard Library Documentation</title>


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  <ul class="link-list" role="directory">
    <li ><a href="#method-c-new">::new</a>
    <li ><a href="#method-i-fill_ancestor_source">#fill_ancestor_source</a>
    <li ><a href="#method-i-instance_ancestors">#instance_ancestors</a>
    <li ><a href="#method-i-interface_ancestors">#interface_ancestors</a>
    <li ><a href="#method-i-mixin_ancestors">#mixin_ancestors</a>
    <li ><a href="#method-i-mixin_ancestors0">#mixin_ancestors0</a>
    <li ><a href="#method-i-one_instance_ancestors">#one_instance_ancestors</a>
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    <li ><a href="#method-i-one_singleton_ancestors">#one_singleton_ancestors</a>
    <li ><a href="#method-i-singleton_ancestors">#singleton_ancestors</a>
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    <main role="main" aria-labelledby="class-RBS::DefinitionBuilder::AncestorBuilder">
    <h1 id="class-RBS::DefinitionBuilder::AncestorBuilder" class="class">
      class RBS::DefinitionBuilder::AncestorBuilder
    </h1>

    <section class="description">
    
    </section>

      <section id="5Buntitled-5D" class="documentation-section">



        <section class="attribute-method-details" class="method-section">
        <header>
        <h3>Attributes</h3>
        </header>

          <div id="attribute-i-env" class="method-detail">
            <div class="method-heading attribute-method-heading">
              <span class="method-name">env</span><span
                class="attribute-access-type">[R]</span>
            </div>

            <div class="method-description">
              
              </div>
            </div>
          <div id="attribute-i-instance_ancestors_cache" class="method-detail">
            <div class="method-heading attribute-method-heading">
              <span class="method-name">instance_ancestors_cache</span><span
                class="attribute-access-type">[R]</span>
            </div>

            <div class="method-description">
              
              </div>
            </div>
          <div id="attribute-i-interface_ancestors_cache" class="method-detail">
            <div class="method-heading attribute-method-heading">
              <span class="method-name">interface_ancestors_cache</span><span
                class="attribute-access-type">[R]</span>
            </div>

            <div class="method-description">
              
              </div>
            </div>
          <div id="attribute-i-one_instance_ancestors_cache" class="method-detail">
            <div class="method-heading attribute-method-heading">
              <span class="method-name">one_instance_ancestors_cache</span><span
                class="attribute-access-type">[R]</span>
            </div>

            <div class="method-description">
              
              </div>
            </div>
          <div id="attribute-i-one_interface_ancestors_cache" class="method-detail">
            <div class="method-heading attribute-method-heading">
              <span class="method-name">one_interface_ancestors_cache</span><span
                class="attribute-access-type">[R]</span>
            </div>

            <div class="method-description">
              
              </div>
            </div>
          <div id="attribute-i-one_singleton_ancestors_cache" class="method-detail">
            <div class="method-heading attribute-method-heading">
              <span class="method-name">one_singleton_ancestors_cache</span><span
                class="attribute-access-type">[R]</span>
            </div>

            <div class="method-description">
              
              </div>
            </div>
          <div id="attribute-i-singleton_ancestors_cache" class="method-detail">
            <div class="method-heading attribute-method-heading">
              <span class="method-name">singleton_ancestors_cache</span><span
                class="attribute-access-type">[R]</span>
            </div>

            <div class="method-description">
              
              </div>
            </div>
            </section>


                <section id="public-class-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Public Class Methods</h3>
                </header>

                  <div id="method-c-new" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">new</span><span
                                class="method-args">(env:)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="new-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 162</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-value">env:</span>)
  <span class="ruby-ivar">@env</span> = <span class="ruby-identifier">env</span>

  <span class="ruby-ivar">@one_instance_ancestors_cache</span> = {}
  <span class="ruby-ivar">@instance_ancestors_cache</span> = {}

  <span class="ruby-ivar">@one_singleton_ancestors_cache</span> = {}
  <span class="ruby-ivar">@singleton_ancestors_cache</span> = {}

  <span class="ruby-ivar">@one_interface_ancestors_cache</span> = {}
  <span class="ruby-ivar">@interface_ancestors_cache</span> = {}
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                          </section>

                <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Public Instance Methods</h3>
                </header>

                  <div id="method-i-fill_ancestor_source" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">fill_ancestor_source</span><span
                                class="method-args">(ancestor, name:, source:, &amp;block)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="fill_ancestor_source-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 564</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">fill_ancestor_source</span>(<span class="ruby-identifier">ancestor</span>, <span class="ruby-value">name:</span>, <span class="ruby-value">source:</span>, <span class="ruby-operator">&amp;</span><span class="ruby-identifier">block</span>)
  <span class="ruby-keyword">case</span> <span class="ruby-identifier">ancestor</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">ancestor</span>.<span class="ruby-identifier">name</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">name</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-operator">!</span><span class="ruby-identifier">ancestor</span>.<span class="ruby-identifier">source</span>
      <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">ancestor</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">ancestor</span>.<span class="ruby-identifier">args</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">source</span>)
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">ancestor</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">else</span>
    <span class="ruby-identifier">ancestor</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-instance_ancestors" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">instance_ancestors</span><span
                                class="method-args">(type_name, building_ancestors: [])</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="instance_ancestors-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 408</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">instance_ancestors</span>(<span class="ruby-identifier">type_name</span>, <span class="ruby-value">building_ancestors:</span> [])
  <span class="ruby-identifier">as</span> = <span class="ruby-identifier">instance_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">and</span> <span class="ruby-keyword">return</span> <span class="ruby-identifier">as</span>

  <span class="ruby-identifier">entry</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">class_decls</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;Unknown name for instance_ancestors: #{type_name}&quot;</span>
  <span class="ruby-identifier">params</span> = <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">type_params</span>.<span class="ruby-identifier">each</span>.<span class="ruby-identifier">map</span>(<span class="ruby-operator">&amp;</span><span class="ruby-value">:name</span>)
  <span class="ruby-identifier">args</span> = <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">type_params</span>.<span class="ruby-identifier">map</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">type_param</span><span class="ruby-operator">|</span>
    <span class="ruby-constant">Types</span><span class="ruby-operator">::</span><span class="ruby-constant">Variable</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">type_param</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">type_param</span>.<span class="ruby-identifier">location</span>)
  <span class="ruby-keyword">end</span>
  <span class="ruby-identifier">self_ancestor</span> = <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">type_name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">args</span>, <span class="ruby-value">source:</span> <span class="ruby-keyword">nil</span>)

  <span class="ruby-constant">RecursiveAncestorError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">self_ancestor</span>,
                                <span class="ruby-value">ancestors:</span> <span class="ruby-identifier">building_ancestors</span>,
                                <span class="ruby-value">location:</span> <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
  <span class="ruby-identifier">building_ancestors</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">self_ancestor</span>

  <span class="ruby-identifier">one_ancestors</span> = <span class="ruby-identifier">one_instance_ancestors</span>(<span class="ruby-identifier">type_name</span>)

  <span class="ruby-comment"># @type var ancestors: Array[::RBS::Definition::Ancestor::t]</span>
  <span class="ruby-identifier">ancestors</span> = []

  <span class="ruby-keyword">case</span> <span class="ruby-identifier">entry</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Environment</span><span class="ruby-operator">::</span><span class="ruby-constant">ClassEntry</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">super_class</span> = <span class="ruby-identifier">one_ancestors</span>.<span class="ruby-identifier">super_class</span>
      <span class="ruby-comment"># @type var super_class: Definition::Ancestor::Instance</span>
      <span class="ruby-identifier">super_name</span> = <span class="ruby-identifier">super_class</span>.<span class="ruby-identifier">name</span>
      <span class="ruby-identifier">super_args</span> = <span class="ruby-identifier">super_class</span>.<span class="ruby-identifier">args</span>

      <span class="ruby-identifier">super_ancestors</span> = <span class="ruby-identifier">instance_ancestors</span>(<span class="ruby-identifier">super_name</span>, <span class="ruby-value">building_ancestors:</span> <span class="ruby-identifier">building_ancestors</span>).<span class="ruby-identifier">apply</span>(<span class="ruby-identifier">super_args</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
      <span class="ruby-identifier">super_ancestors</span>.<span class="ruby-identifier">map!</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">ancestor</span><span class="ruby-operator">|</span> <span class="ruby-identifier">fill_ancestor_source</span>(<span class="ruby-identifier">ancestor</span>, <span class="ruby-value">name:</span> <span class="ruby-identifier">super_name</span>, <span class="ruby-value">source:</span> <span class="ruby-value">:super</span>) }
      <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">super_ancestors</span>)
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>

  <span class="ruby-keyword">if</span> <span class="ruby-identifier">self_types</span> = <span class="ruby-identifier">one_ancestors</span>.<span class="ruby-identifier">self_types</span>
    <span class="ruby-identifier">self_types</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">mod</span><span class="ruby-operator">|</span>
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">mod</span>.<span class="ruby-identifier">name</span>.<span class="ruby-identifier">class?</span>
        <span class="ruby-comment"># Ensure there is no loop in ancestors chain</span>
        <span class="ruby-identifier">instance_ancestors</span>(<span class="ruby-identifier">mod</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">building_ancestors:</span> <span class="ruby-identifier">building_ancestors</span>)
      <span class="ruby-keyword">end</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>

  <span class="ruby-keyword">if</span> <span class="ruby-identifier">included_modules</span> = <span class="ruby-identifier">one_ancestors</span>.<span class="ruby-identifier">included_modules</span>
    <span class="ruby-identifier">included_modules</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">mod</span><span class="ruby-operator">|</span>
      <span class="ruby-identifier">name</span> = <span class="ruby-identifier">mod</span>.<span class="ruby-identifier">name</span>
      <span class="ruby-identifier">arg_types</span> = <span class="ruby-identifier">mod</span>.<span class="ruby-identifier">args</span>
      <span class="ruby-identifier">mod_ancestors</span> = <span class="ruby-identifier">instance_ancestors</span>(<span class="ruby-identifier">name</span>, <span class="ruby-value">building_ancestors:</span> <span class="ruby-identifier">building_ancestors</span>).<span class="ruby-identifier">apply</span>(<span class="ruby-identifier">arg_types</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
      <span class="ruby-identifier">mod_ancestors</span>.<span class="ruby-identifier">map!</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">ancestor</span><span class="ruby-operator">|</span> <span class="ruby-identifier">fill_ancestor_source</span>(<span class="ruby-identifier">ancestor</span>, <span class="ruby-value">name:</span> <span class="ruby-identifier">name</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">mod</span>.<span class="ruby-identifier">source</span>) }
      <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">mod_ancestors</span>)
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-identifier">self_ancestor</span>)

  <span class="ruby-keyword">if</span> <span class="ruby-identifier">prepended_modules</span> = <span class="ruby-identifier">one_ancestors</span>.<span class="ruby-identifier">prepended_modules</span>
    <span class="ruby-identifier">prepended_modules</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">mod</span><span class="ruby-operator">|</span>
      <span class="ruby-identifier">name</span> = <span class="ruby-identifier">mod</span>.<span class="ruby-identifier">name</span>
      <span class="ruby-identifier">arg_types</span> = <span class="ruby-identifier">mod</span>.<span class="ruby-identifier">args</span>
      <span class="ruby-identifier">mod_ancestors</span> = <span class="ruby-identifier">instance_ancestors</span>(<span class="ruby-identifier">name</span>, <span class="ruby-value">building_ancestors:</span> <span class="ruby-identifier">building_ancestors</span>).<span class="ruby-identifier">apply</span>(<span class="ruby-identifier">arg_types</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
      <span class="ruby-identifier">mod_ancestors</span>.<span class="ruby-identifier">map!</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">ancestor</span><span class="ruby-operator">|</span> <span class="ruby-identifier">fill_ancestor_source</span>(<span class="ruby-identifier">ancestor</span>, <span class="ruby-value">name:</span> <span class="ruby-identifier">name</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">mod</span>.<span class="ruby-identifier">source</span>) }
      <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">mod_ancestors</span>)
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">building_ancestors</span>.<span class="ruby-identifier">pop</span>

  <span class="ruby-identifier">instance_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] = <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">InstanceAncestors</span>.<span class="ruby-identifier">new</span>(
    <span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>,
    <span class="ruby-value">params:</span> <span class="ruby-identifier">params</span>,
    <span class="ruby-value">ancestors:</span> <span class="ruby-identifier">ancestors</span>
  )
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-interface_ancestors" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">interface_ancestors</span><span
                                class="method-args">(type_name, building_ancestors: [])</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="interface_ancestors-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 531</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">interface_ancestors</span>(<span class="ruby-identifier">type_name</span>, <span class="ruby-value">building_ancestors:</span> [])
  <span class="ruby-identifier">as</span> = <span class="ruby-identifier">interface_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">and</span> <span class="ruby-keyword">return</span> <span class="ruby-identifier">as</span>

  <span class="ruby-identifier">entry</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">interface_decls</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;Unknown name for interface_ancestors: #{type_name}&quot;</span>
  <span class="ruby-identifier">params</span> = <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">type_params</span>.<span class="ruby-identifier">each</span>.<span class="ruby-identifier">map</span>(<span class="ruby-operator">&amp;</span><span class="ruby-value">:name</span>)
  <span class="ruby-identifier">args</span> = <span class="ruby-constant">Types</span><span class="ruby-operator">::</span><span class="ruby-constant">Variable</span>.<span class="ruby-identifier">build</span>(<span class="ruby-identifier">params</span>)
  <span class="ruby-identifier">self_ancestor</span> = <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">type_name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">args</span>, <span class="ruby-value">source:</span> <span class="ruby-keyword">nil</span>)

  <span class="ruby-constant">RecursiveAncestorError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">self_ancestor</span>,
                                <span class="ruby-value">ancestors:</span> <span class="ruby-identifier">building_ancestors</span>,
                                <span class="ruby-value">location:</span> <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
  <span class="ruby-identifier">building_ancestors</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">self_ancestor</span>

  <span class="ruby-identifier">one_ancestors</span> = <span class="ruby-identifier">one_interface_ancestors</span>(<span class="ruby-identifier">type_name</span>)
  <span class="ruby-identifier">ancestors</span> = []

  <span class="ruby-identifier">included_interfaces</span> = <span class="ruby-identifier">one_ancestors</span>.<span class="ruby-identifier">included_interfaces</span> <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span>
  <span class="ruby-identifier">included_interfaces</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">a</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">included_ancestors</span> = <span class="ruby-identifier">interface_ancestors</span>(<span class="ruby-identifier">a</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">building_ancestors:</span> <span class="ruby-identifier">building_ancestors</span>).<span class="ruby-identifier">apply</span>(<span class="ruby-identifier">a</span>.<span class="ruby-identifier">args</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
    <span class="ruby-identifier">included_ancestors</span>.<span class="ruby-identifier">map!</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">ancestor</span><span class="ruby-operator">|</span> <span class="ruby-identifier">fill_ancestor_source</span>(<span class="ruby-identifier">ancestor</span>, <span class="ruby-value">name:</span> <span class="ruby-identifier">a</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">a</span>.<span class="ruby-identifier">source</span>) }
    <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">included_ancestors</span>)
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-identifier">self_ancestor</span>)
  <span class="ruby-identifier">building_ancestors</span>.<span class="ruby-identifier">pop</span>

  <span class="ruby-identifier">interface_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] = <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">InstanceAncestors</span>.<span class="ruby-identifier">new</span>(
    <span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>,
    <span class="ruby-value">params:</span> <span class="ruby-identifier">params</span>,
    <span class="ruby-value">ancestors:</span> <span class="ruby-identifier">ancestors</span>
  )
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-mixin_ancestors" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">mixin_ancestors</span><span
                                class="method-args">(entry, type_name, included_modules:, included_interfaces:, extended_modules:, prepended_modules:, extended_interfaces:)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="mixin_ancestors-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 388</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">mixin_ancestors</span>(<span class="ruby-identifier">entry</span>, <span class="ruby-identifier">type_name</span>, <span class="ruby-value">included_modules:</span>, <span class="ruby-value">included_interfaces:</span>, <span class="ruby-value">extended_modules:</span>, <span class="ruby-value">prepended_modules:</span>, <span class="ruby-value">extended_interfaces:</span>)
  <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">decls</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">d</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">decl</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">decl</span>

    <span class="ruby-identifier">align_params</span> = <span class="ruby-constant">Substitution</span>.<span class="ruby-identifier">build</span>(
      <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">type_params</span>.<span class="ruby-identifier">each</span>.<span class="ruby-identifier">map</span>(<span class="ruby-operator">&amp;</span><span class="ruby-value">:name</span>),
      <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">type_params</span>.<span class="ruby-identifier">map</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">param</span><span class="ruby-operator">|</span> <span class="ruby-constant">Types</span><span class="ruby-operator">::</span><span class="ruby-constant">Variable</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">param</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">param</span>.<span class="ruby-identifier">location</span>) }
    )

    <span class="ruby-identifier">mixin_ancestors0</span>(<span class="ruby-identifier">decl</span>,
                     <span class="ruby-identifier">type_name</span>,
                     <span class="ruby-value">align_params:</span> <span class="ruby-identifier">align_params</span>,
                     <span class="ruby-value">included_modules:</span> <span class="ruby-identifier">included_modules</span>,
                     <span class="ruby-value">included_interfaces:</span> <span class="ruby-identifier">included_interfaces</span>,
                     <span class="ruby-value">extended_modules:</span> <span class="ruby-identifier">extended_modules</span>,
                     <span class="ruby-value">prepended_modules:</span> <span class="ruby-identifier">prepended_modules</span>,
                     <span class="ruby-value">extended_interfaces:</span> <span class="ruby-identifier">extended_interfaces</span>)
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-mixin_ancestors0" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">mixin_ancestors0</span><span
                                class="method-args">(decl, type_name, align_params:, included_modules:, included_interfaces:, extended_modules:, prepended_modules:, extended_interfaces:)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="mixin_ancestors0-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 337</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">mixin_ancestors0</span>(<span class="ruby-identifier">decl</span>, <span class="ruby-identifier">type_name</span>, <span class="ruby-value">align_params:</span>, <span class="ruby-value">included_modules:</span>, <span class="ruby-value">included_interfaces:</span>, <span class="ruby-value">extended_modules:</span>, <span class="ruby-value">prepended_modules:</span>, <span class="ruby-value">extended_interfaces:</span>)
  <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">each_mixin</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">member</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">case</span> <span class="ruby-identifier">member</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Include</span>
      <span class="ruby-identifier">module_name</span> = <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>
      <span class="ruby-identifier">module_args</span> = <span class="ruby-identifier">member</span>.<span class="ruby-identifier">args</span>.<span class="ruby-identifier">map</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">type</span><span class="ruby-operator">|</span> <span class="ruby-identifier">align_params</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">type</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-identifier">align_params</span>) <span class="ruby-operator">:</span> <span class="ruby-identifier">type</span> }

      <span class="ruby-keyword">case</span>
      <span class="ruby-keyword">when</span> <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>.<span class="ruby-identifier">class?</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">included_modules</span>
        <span class="ruby-constant">MixinClassError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>, <span class="ruby-value">member:</span> <span class="ruby-identifier">member</span>)
        <span class="ruby-constant">NoMixinFoundError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>, <span class="ruby-value">member:</span> <span class="ruby-identifier">member</span>)

        <span class="ruby-identifier">module_name</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">normalize_module_name</span>(<span class="ruby-identifier">module_name</span>)
        <span class="ruby-identifier">included_modules</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">module_name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">module_args</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">member</span>)
      <span class="ruby-keyword">when</span> <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>.<span class="ruby-identifier">interface?</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">included_interfaces</span>
        <span class="ruby-constant">NoMixinFoundError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>, <span class="ruby-value">member:</span> <span class="ruby-identifier">member</span>)

        <span class="ruby-identifier">included_interfaces</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">module_name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">module_args</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">member</span>)
      <span class="ruby-keyword">end</span>

    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Prepend</span>
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">prepended_modules</span>
        <span class="ruby-constant">MixinClassError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>, <span class="ruby-value">member:</span> <span class="ruby-identifier">member</span>)
        <span class="ruby-constant">NoMixinFoundError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>, <span class="ruby-value">member:</span> <span class="ruby-identifier">member</span>)

        <span class="ruby-identifier">module_name</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">normalize_module_name</span>(<span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>)
        <span class="ruby-identifier">module_args</span> = <span class="ruby-identifier">member</span>.<span class="ruby-identifier">args</span>.<span class="ruby-identifier">map</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">type</span><span class="ruby-operator">|</span> <span class="ruby-identifier">align_params</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">type</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-identifier">align_params</span>) <span class="ruby-operator">:</span> <span class="ruby-identifier">type</span> }

        <span class="ruby-identifier">prepended_modules</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">module_name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">module_args</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">member</span>)
      <span class="ruby-keyword">end</span>

    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Extend</span>
      <span class="ruby-identifier">module_name</span> = <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>
      <span class="ruby-identifier">module_args</span> = <span class="ruby-identifier">member</span>.<span class="ruby-identifier">args</span>

      <span class="ruby-keyword">case</span>
      <span class="ruby-keyword">when</span> <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>.<span class="ruby-identifier">class?</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">extended_modules</span>
        <span class="ruby-constant">MixinClassError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>, <span class="ruby-value">member:</span> <span class="ruby-identifier">member</span>)
        <span class="ruby-constant">NoMixinFoundError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>, <span class="ruby-value">member:</span> <span class="ruby-identifier">member</span>)

        <span class="ruby-identifier">module_name</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">normalize_module_name</span>(<span class="ruby-identifier">module_name</span>)
        <span class="ruby-identifier">extended_modules</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">module_name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">module_args</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">member</span>)
      <span class="ruby-keyword">when</span> <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>.<span class="ruby-identifier">interface?</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">extended_interfaces</span>
        <span class="ruby-constant">NoMixinFoundError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>, <span class="ruby-value">member:</span> <span class="ruby-identifier">member</span>)

        <span class="ruby-identifier">extended_interfaces</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">module_name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">module_args</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">member</span>)
      <span class="ruby-keyword">end</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-one_instance_ancestors" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">one_instance_ancestors</span><span
                                class="method-args">(type_name)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="one_instance_ancestors-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 192</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">one_instance_ancestors</span>(<span class="ruby-identifier">type_name</span>)
  <span class="ruby-identifier">type_name</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">normalize_module_name</span>(<span class="ruby-identifier">type_name</span>)

  <span class="ruby-identifier">as</span> = <span class="ruby-identifier">one_instance_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">and</span> <span class="ruby-keyword">return</span> <span class="ruby-identifier">as</span>

  <span class="ruby-identifier">entry</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">class_decls</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;Unknown name for one_instance_ancestors: #{type_name}&quot;</span>
  <span class="ruby-identifier">params</span> = <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">type_params</span>.<span class="ruby-identifier">each</span>.<span class="ruby-identifier">map</span>(<span class="ruby-operator">&amp;</span><span class="ruby-value">:name</span>)

  <span class="ruby-keyword">case</span> <span class="ruby-identifier">entry</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Environment</span><span class="ruby-operator">::</span><span class="ruby-constant">ClassEntry</span>
    <span class="ruby-identifier">validate_super_class!</span>(<span class="ruby-identifier">type_name</span>, <span class="ruby-identifier">entry</span>)
    <span class="ruby-identifier">primary</span> = <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">primary</span>
    <span class="ruby-identifier">super_class</span> = <span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">super_class</span>

    <span class="ruby-keyword">if</span> <span class="ruby-identifier">type_name</span> <span class="ruby-operator">!=</span> <span class="ruby-constant">BuiltinNames</span><span class="ruby-operator">::</span><span class="ruby-constant">BasicObject</span>.<span class="ruby-identifier">name</span>
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">super_class</span>
        <span class="ruby-identifier">super_name</span> = <span class="ruby-identifier">super_class</span>.<span class="ruby-identifier">name</span>
        <span class="ruby-identifier">super_args</span> = <span class="ruby-identifier">super_class</span>.<span class="ruby-identifier">args</span>
      <span class="ruby-keyword">else</span>
        <span class="ruby-identifier">super_name</span> = <span class="ruby-constant">BuiltinNames</span><span class="ruby-operator">::</span><span class="ruby-constant">Object</span>.<span class="ruby-identifier">name</span>
        <span class="ruby-identifier">super_args</span> = []
      <span class="ruby-keyword">end</span>

      <span class="ruby-identifier">super_name</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">normalize_module_name</span>(<span class="ruby-identifier">super_name</span>)

      <span class="ruby-constant">NoSuperclassFoundError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">super_name</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">super_class</span>
        <span class="ruby-constant">InheritModuleError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">super_class</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>)
      <span class="ruby-keyword">end</span>

      <span class="ruby-identifier">ancestors</span> = <span class="ruby-constant">OneAncestors</span>.<span class="ruby-identifier">class_instance</span>(
        <span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>,
        <span class="ruby-value">params:</span> <span class="ruby-identifier">params</span>,
        <span class="ruby-value">super_class:</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">super_name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">super_args</span>, <span class="ruby-value">source:</span> <span class="ruby-value">:super</span>)
      )
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">ancestors</span> = <span class="ruby-constant">OneAncestors</span>.<span class="ruby-identifier">class_instance</span>(
        <span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>,
        <span class="ruby-value">params:</span> <span class="ruby-identifier">params</span>,
        <span class="ruby-value">super_class:</span> <span class="ruby-keyword">nil</span>
      )
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Environment</span><span class="ruby-operator">::</span><span class="ruby-constant">ModuleEntry</span>
    <span class="ruby-identifier">ancestors</span> = <span class="ruby-constant">OneAncestors</span>.<span class="ruby-identifier">module_instance</span>(<span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>, <span class="ruby-value">params:</span> <span class="ruby-identifier">params</span>)

    <span class="ruby-identifier">self_types</span> = <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">self_types</span> <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">self_types</span>.<span class="ruby-identifier">empty?</span>
      <span class="ruby-identifier">self_types</span>.<span class="ruby-identifier">push</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-constant">BuiltinNames</span><span class="ruby-operator">::</span><span class="ruby-constant">Object</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">args:</span> [], <span class="ruby-value">source:</span> <span class="ruby-keyword">nil</span>)
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">self_types</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">module_self</span><span class="ruby-operator">|</span>
        <span class="ruby-constant">NoSelfTypeFoundError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">module_self</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>)

        <span class="ruby-identifier">module_name</span> = <span class="ruby-identifier">module_self</span>.<span class="ruby-identifier">name</span>
        <span class="ruby-keyword">if</span> <span class="ruby-identifier">module_name</span>.<span class="ruby-identifier">class?</span>
          <span class="ruby-identifier">module_name</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">normalize_module_name</span>(<span class="ruby-identifier">module_name</span>)
        <span class="ruby-keyword">end</span>
        <span class="ruby-identifier">self_types</span>.<span class="ruby-identifier">push</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">module_name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">module_self</span>.<span class="ruby-identifier">args</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">module_self</span>)
      <span class="ruby-keyword">end</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">mixin_ancestors</span>(<span class="ruby-identifier">entry</span>,
                  <span class="ruby-identifier">type_name</span>,
                  <span class="ruby-value">included_modules:</span> <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">included_modules</span>,
                  <span class="ruby-value">included_interfaces:</span> <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">included_interfaces</span>,
                  <span class="ruby-value">prepended_modules:</span> <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">prepended_modules</span>,
                  <span class="ruby-value">extended_modules:</span> <span class="ruby-keyword">nil</span>,
                  <span class="ruby-value">extended_interfaces:</span> <span class="ruby-keyword">nil</span>)

  <span class="ruby-identifier">one_instance_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] = <span class="ruby-identifier">ancestors</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-one_interface_ancestors" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">one_interface_ancestors</span><span
                                class="method-args">(type_name)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="one_interface_ancestors-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 318</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">one_interface_ancestors</span>(<span class="ruby-identifier">type_name</span>)
  <span class="ruby-identifier">one_interface_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-operator">||=</span>
    <span class="ruby-keyword">begin</span>
      <span class="ruby-identifier">entry</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">interface_decls</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;Unknown name for one_interface_ancestors: #{type_name}&quot;</span>
      <span class="ruby-identifier">params</span> = <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">type_params</span>.<span class="ruby-identifier">each</span>.<span class="ruby-identifier">map</span>(<span class="ruby-operator">&amp;</span><span class="ruby-value">:name</span>)

      <span class="ruby-constant">OneAncestors</span>.<span class="ruby-identifier">interface</span>(<span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>, <span class="ruby-value">params:</span> <span class="ruby-identifier">params</span>).<span class="ruby-identifier">tap</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">ancestors</span><span class="ruby-operator">|</span>
        <span class="ruby-identifier">mixin_ancestors0</span>(<span class="ruby-identifier">entry</span>.<span class="ruby-identifier">decl</span>,
                         <span class="ruby-identifier">type_name</span>,
                         <span class="ruby-value">align_params:</span> <span class="ruby-keyword">nil</span>,
                         <span class="ruby-value">included_modules:</span> <span class="ruby-keyword">nil</span>,
                         <span class="ruby-value">included_interfaces:</span> <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">included_interfaces</span>,
                         <span class="ruby-value">prepended_modules:</span> <span class="ruby-keyword">nil</span>,
                         <span class="ruby-value">extended_modules:</span> <span class="ruby-keyword">nil</span>,
                         <span class="ruby-value">extended_interfaces:</span> <span class="ruby-keyword">nil</span>)
      <span class="ruby-keyword">end</span>
    <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-one_singleton_ancestors" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">one_singleton_ancestors</span><span
                                class="method-args">(type_name)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="one_singleton_ancestors-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 264</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">one_singleton_ancestors</span>(<span class="ruby-identifier">type_name</span>)
  <span class="ruby-identifier">type_name</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">normalize_module_name</span>(<span class="ruby-identifier">type_name</span>)
  <span class="ruby-identifier">as</span> = <span class="ruby-identifier">one_singleton_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">and</span> <span class="ruby-keyword">return</span> <span class="ruby-identifier">as</span>

  <span class="ruby-identifier">entry</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">class_decls</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;Unknown name for one_singleton_ancestors: #{type_name}&quot;</span>

  <span class="ruby-keyword">case</span> <span class="ruby-identifier">entry</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Environment</span><span class="ruby-operator">::</span><span class="ruby-constant">ClassEntry</span>
    <span class="ruby-identifier">validate_super_class!</span>(<span class="ruby-identifier">type_name</span>, <span class="ruby-identifier">entry</span>)
    <span class="ruby-identifier">primary</span> = <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">primary</span>
    <span class="ruby-identifier">super_class</span> = <span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">super_class</span>

    <span class="ruby-keyword">if</span> <span class="ruby-identifier">type_name</span> <span class="ruby-operator">!=</span> <span class="ruby-constant">BuiltinNames</span><span class="ruby-operator">::</span><span class="ruby-constant">BasicObject</span>.<span class="ruby-identifier">name</span>
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">super_class</span>
        <span class="ruby-identifier">super_name</span> = <span class="ruby-identifier">super_class</span>.<span class="ruby-identifier">name</span>
      <span class="ruby-keyword">else</span>
        <span class="ruby-identifier">super_name</span> = <span class="ruby-constant">BuiltinNames</span><span class="ruby-operator">::</span><span class="ruby-constant">Object</span>.<span class="ruby-identifier">name</span>
      <span class="ruby-keyword">end</span>

      <span class="ruby-identifier">super_name</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">normalize_module_name</span>(<span class="ruby-identifier">super_name</span>)

      <span class="ruby-constant">NoSuperclassFoundError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">super_name</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">super_class</span>
        <span class="ruby-constant">InheritModuleError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">super_class</span>, <span class="ruby-value">env:</span> <span class="ruby-identifier">env</span>)
      <span class="ruby-keyword">end</span>

      <span class="ruby-identifier">ancestors</span> = <span class="ruby-constant">OneAncestors</span>.<span class="ruby-identifier">singleton</span>(
        <span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>,
        <span class="ruby-value">super_class:</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Singleton</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">super_name</span>)
      )
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">ancestors</span> = <span class="ruby-constant">OneAncestors</span>.<span class="ruby-identifier">singleton</span>(
        <span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>,
        <span class="ruby-value">super_class:</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-constant">BuiltinNames</span><span class="ruby-operator">::</span><span class="ruby-constant">Class</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">args:</span> [], <span class="ruby-value">source:</span> <span class="ruby-value">:super</span>)
      )
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Environment</span><span class="ruby-operator">::</span><span class="ruby-constant">ModuleEntry</span>
    <span class="ruby-identifier">ancestors</span> = <span class="ruby-constant">OneAncestors</span>.<span class="ruby-identifier">singleton</span>(
      <span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>,
      <span class="ruby-value">super_class:</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-constant">BuiltinNames</span><span class="ruby-operator">::</span><span class="ruby-constant">Module</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">args:</span> [], <span class="ruby-value">source:</span> <span class="ruby-value">:super</span>)
    )
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">mixin_ancestors</span>(<span class="ruby-identifier">entry</span>,
                  <span class="ruby-identifier">type_name</span>,
                  <span class="ruby-value">included_modules:</span> <span class="ruby-keyword">nil</span>,
                  <span class="ruby-value">included_interfaces:</span> <span class="ruby-keyword">nil</span>,
                  <span class="ruby-value">prepended_modules:</span> <span class="ruby-keyword">nil</span>,
                  <span class="ruby-value">extended_modules:</span> <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">extended_modules</span>,
                  <span class="ruby-value">extended_interfaces:</span> <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">extended_interfaces</span>)

  <span class="ruby-identifier">one_singleton_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] = <span class="ruby-identifier">ancestors</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-singleton_ancestors" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">singleton_ancestors</span><span
                                class="method-args">(type_name, building_ancestors: [])</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="singleton_ancestors-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 481</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">singleton_ancestors</span>(<span class="ruby-identifier">type_name</span>, <span class="ruby-value">building_ancestors:</span> [])
  <span class="ruby-identifier">as</span> = <span class="ruby-identifier">singleton_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">and</span> <span class="ruby-keyword">return</span> <span class="ruby-identifier">as</span>

  <span class="ruby-identifier">entry</span> = <span class="ruby-identifier">env</span>.<span class="ruby-identifier">class_decls</span>[<span class="ruby-identifier">type_name</span>] <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;Unknown name for singleton_ancestors: #{type_name}&quot;</span>
  <span class="ruby-identifier">self_ancestor</span> = <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Singleton</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">type_name</span>)

  <span class="ruby-constant">RecursiveAncestorError</span>.<span class="ruby-identifier">check!</span>(<span class="ruby-identifier">self_ancestor</span>,
                                <span class="ruby-value">ancestors:</span> <span class="ruby-identifier">building_ancestors</span>,
                                <span class="ruby-value">location:</span> <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
  <span class="ruby-identifier">building_ancestors</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">self_ancestor</span>

  <span class="ruby-identifier">one_ancestors</span> = <span class="ruby-identifier">one_singleton_ancestors</span>(<span class="ruby-identifier">type_name</span>)

  <span class="ruby-identifier">ancestors</span> = []

  <span class="ruby-keyword">case</span> <span class="ruby-identifier">super_class</span> = <span class="ruby-identifier">one_ancestors</span>.<span class="ruby-identifier">super_class</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Instance</span>
    <span class="ruby-identifier">super_name</span> = <span class="ruby-identifier">super_class</span>.<span class="ruby-identifier">name</span>
    <span class="ruby-identifier">super_args</span> = <span class="ruby-identifier">super_class</span>.<span class="ruby-identifier">args</span>

    <span class="ruby-identifier">super_ancestors</span> = <span class="ruby-identifier">instance_ancestors</span>(<span class="ruby-identifier">super_name</span>, <span class="ruby-value">building_ancestors:</span> <span class="ruby-identifier">building_ancestors</span>).<span class="ruby-identifier">apply</span>(<span class="ruby-identifier">super_args</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
    <span class="ruby-identifier">super_ancestors</span>.<span class="ruby-identifier">map!</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">ancestor</span><span class="ruby-operator">|</span> <span class="ruby-identifier">fill_ancestor_source</span>(<span class="ruby-identifier">ancestor</span>, <span class="ruby-value">name:</span> <span class="ruby-identifier">super_name</span>, <span class="ruby-value">source:</span> <span class="ruby-value">:super</span>) }
    <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">super_ancestors</span>)

  <span class="ruby-keyword">when</span> <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">Ancestor</span><span class="ruby-operator">::</span><span class="ruby-constant">Singleton</span>
    <span class="ruby-identifier">super_name</span> = <span class="ruby-identifier">super_class</span>.<span class="ruby-identifier">name</span>

    <span class="ruby-identifier">super_ancestors</span> = <span class="ruby-identifier">singleton_ancestors</span>(<span class="ruby-identifier">super_name</span>, <span class="ruby-value">building_ancestors:</span> [])
    <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">super_ancestors</span>.<span class="ruby-identifier">ancestors</span>)
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">extended_modules</span> = <span class="ruby-identifier">one_ancestors</span>.<span class="ruby-identifier">extended_modules</span> <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span>
  <span class="ruby-identifier">extended_modules</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">mod</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">name</span> = <span class="ruby-identifier">mod</span>.<span class="ruby-identifier">name</span>
    <span class="ruby-identifier">args</span> = <span class="ruby-identifier">mod</span>.<span class="ruby-identifier">args</span>
    <span class="ruby-identifier">mod_ancestors</span> = <span class="ruby-identifier">instance_ancestors</span>(<span class="ruby-identifier">name</span>, <span class="ruby-value">building_ancestors:</span> <span class="ruby-identifier">building_ancestors</span>).<span class="ruby-identifier">apply</span>(<span class="ruby-identifier">args</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">primary</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>)
    <span class="ruby-identifier">mod_ancestors</span>.<span class="ruby-identifier">map!</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">ancestor</span><span class="ruby-operator">|</span> <span class="ruby-identifier">fill_ancestor_source</span>(<span class="ruby-identifier">ancestor</span>, <span class="ruby-value">name:</span> <span class="ruby-identifier">name</span>, <span class="ruby-value">source:</span> <span class="ruby-identifier">mod</span>.<span class="ruby-identifier">source</span>) }
    <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">mod_ancestors</span>)
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-identifier">self_ancestor</span>)

  <span class="ruby-identifier">building_ancestors</span>.<span class="ruby-identifier">pop</span>

  <span class="ruby-identifier">singleton_ancestors_cache</span>[<span class="ruby-identifier">type_name</span>] = <span class="ruby-constant">Definition</span><span class="ruby-operator">::</span><span class="ruby-constant">SingletonAncestors</span>.<span class="ruby-identifier">new</span>(
    <span class="ruby-value">type_name:</span> <span class="ruby-identifier">type_name</span>,
    <span class="ruby-value">ancestors:</span> <span class="ruby-identifier">ancestors</span>
  )
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-validate_super_class-21" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">validate_super_class!</span><span
                                class="method-args">(type_name, entry)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="validate_super_class-21-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/definition_builder/ancestor_builder.rb, line 175</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">validate_super_class!</span>(<span class="ruby-identifier">type_name</span>, <span class="ruby-identifier">entry</span>)
  <span class="ruby-identifier">with_super_classes</span> = <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">decls</span>.<span class="ruby-identifier">select</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">d</span><span class="ruby-operator">|</span> <span class="ruby-identifier">d</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">super_class</span> }

  <span class="ruby-keyword">return</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">with_super_classes</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&lt;=</span> <span class="ruby-value">1</span>

  <span class="ruby-identifier">super_types</span> = <span class="ruby-identifier">with_super_classes</span>.<span class="ruby-identifier">map</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">d</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">super_class</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">super_class</span> <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span>
    <span class="ruby-constant">Types</span><span class="ruby-operator">::</span><span class="ruby-constant">ClassInstance</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">super_class</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">args:</span> <span class="ruby-identifier">super_class</span>.<span class="ruby-identifier">args</span>, <span class="ruby-value">location:</span> <span class="ruby-keyword">nil</span>)
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">super_types</span>.<span class="ruby-identifier">uniq!</span>

  <span class="ruby-keyword">return</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">super_types</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">==</span> <span class="ruby-value">1</span>

  <span class="ruby-identifier">raise</span> <span class="ruby-constant">SuperclassMismatchError</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">type_name</span>, <span class="ruby-value">entry:</span> <span class="ruby-identifier">entry</span>)
<span class="ruby-keyword">end</span></pre>
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